* Fixing humidity/temperature data returned from get_biome_data() to fix the range (and sign) of the original data
* Removing unused variables
Co-authored-by: OgelGames <olliverdc28@gmail.com>
* biome_lib.register_on_generate now supports spawn_on_sides and spawn_on_bottom flags
* biome_lib.register_on_generate now passes node position and face direction to node placement function
* Replacing spaces with tabs
* Fixing API to ensure it behaves same way it used to, when not passing spawn_on_sides or spawn_on_bottom flags.